There are two part numbers for this pipe and I was just wondering if the newer style is an updated design that will still work ether 420A's that have the earlier version of the pipe. The reason I'm asking is the fact that my pipe is severely rusted and I found a waterpump inlet pipe off a 98 in great shape. Before I remove the pipe and risk breaking it, I just want to make sure the pipes are interchangeable.

As far as I know, they're interchangeable. I have not read anywhere about there being a difference between the two.

Document your progress and keep us posted with what you come up with. It'll be good searchable content down the road.

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I wasnt even aware that there was 2 different water pump tubes?

95 Eclipse GS: 10.5:1, Crower 2's and MSII
186 WHP - 150 WTQ
14.697 @ 93.85 MPH......Gone, but not forgotten
99 420A Avenger: Given to my sister
99 GS OZ: Sold
03 Evo 8: Family Car with balls

Technically, there are 2 part numbers through CAPS. For early 95 models to mid 96, and then the latter 96 and up. I don't think there is a difference between the 2, just quirks of Mitsu/Chrysler's part number system.

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'95 Eclipse TurboGS (garage deco)
'95 TSi AWD (restoring a survivor)
'97 Talon ESi-T (poor impulse control)
'99 Eclipse RS-T (daily beater)
'13 Evo X (mostly stock)
'17 Sienna (Middle Aged Dad Mobile)



Factory Service Manuals: http://nawdu.de/files/

That's good to know. I started questioning it when I went to Autozone and they had two different gaskets for the tube, one just like a regular o-ring and one that looked like an o-ring with a tiny additional o-ring molded to it.